Even after all those years, you can still sense the quality and silence within cabinet. What a car.For those who are wondering why only around 300, it's quite simple: the aerodynamics of the W124 are not designed for such speeds. Above 300 km/h, planes take off, this is called the Bernoulli effect. The air flows faster under the car than above it, which lifts the car and causes it to lose stability. To drive over 300, extensive spoilers are necessary, which push the car back down. Among other things, it would need a spoiler lip at the front, which ensures that as little air as possible gets under the car.